Dry-cell sealing device



fiam. 11, 19290 W. F. HENDRV DRY CELL SEALING DEVICE Filed- Jan. 21, 1925 M ATTORNEY .Patented Jan. me.

WILLIAM F. HENDRY; or ossmme, New

Application filed January improvements in dry cellsealing devices.

The object iof the invention is to provide a mechanically operating device for applying a .seal of pitch or the like to the tops of dry cells and'do away with the customary method of pouring the pitch with a ladle.

With this object in view I provide a con tainer from which an annular layer ofpitch ,or other suitable sealing material may flow. on top of the dry cell'under the control of a valve operated in a predetermined manner. Meansare'provided for properly centering the cell during the pouring operation and for protecting the central carbon electrode. In order to prevent the collapsing of the column of pitch that is being deposited on the cell after the closure of said valve,'the arrangement is so provided that at this time a blast of air is sent through the column.

These and other features of the invention --wi1l more clearly appear from the following detailed description of an embod ment thereof and the appended claims.-

. The drawings illustrate as much of a sealingdevice as is necessary for an understanding of the invention, parts of the device being shown in side elevation and others in vertical cross-section. -Obviously, the details of the construction may be varied, the present disclosure being intended mainly to illustrate I the functions to be performed inaccordance with the present invention.

1 cated withina' mass or bobbin of depolarizing space between the tops of electrodes .4 and-5 material 6. g I

The purpose of the operations to be hereinafter described is to ill the annular free with a seal of pitch. First the operator removes his foot from a lever 7 and pulls dowrr a second lever 8. The lever 7 is pivoted at 9 to a'leg 10 of a table 11 on which the platform 2 is supported. By'mea'ns of a spring 12 stretched between the lever 7 and table 11, the lever is rotated in a clockwise direction. Inresponse to this movement, the platform 2 with cell 1 are caused to rise, the platform being carried on'the free end of-a rod 13 which projects through table 11 and is pivoted to lever '7 sat-14.

v YORK, ASSIGI\TOR,.,BY ME'SNE Assremvrnnrs, r0 NATIONAL oAn'BoncoMrAnY, mo or NEW'YORKLN. Y,, a conronnrron or NEWYORK.' w a DRY-CELL SEALING DEVICE.

21,11925. Serial 3,831.

.- In its downward moveme'nt theflever 8,-

which is pivoted at 15 to an upright 16,-causes a plunger 17 to descend towards cell 1. One

end of-plunger 17 is rotatably supported on lever "Sat 18, and the. other end is shaped into a bell-shaped cap 19 adapted to receive the top of carbon electrode 5. Owing to the shape of cap19 it will center cell 1 on the platform 2 even in case the cell were improperly aligned.

Slightly above cap 19 the plunger 17 isformed into a valve20 adapted to close the nozzle 3. When theplunger descends, the valve 20 is opened and pitch is permitted to fiow from a reservoir 21 between the tops of electrodes Land-5, theendjof carbon 5 being protectedby means of cap 19 against which it is firmly .held by spring 12. The pitch in reser'volr 21 is-mainta'ined in a yiscous condition by any suitable heating means, such as a jacket 22 through which steamis passed.,

The lower part of'plunger 17 passes. through the reservoir 21 and the escaping of pitch is guarded against by means of a packing 23.

When the annular space in cell 1 has been filled with pitch nearly, to the top of container {1, the operator pushes up the lever 8 and presses down-thelever 7, restoring thus the celll to its normal position and closing the valve 20. While the closure of the valve cuts off the flow of pitch from reservoir 21, a col--- um nof pitch suspended in air'will drop down on topv of the dry cell. This-column would normally collapse over the protruding end of the carbon electrode, and in order to prevent this, a blast of air issent through the column. The air is sent througha conduit 24 and'a passageway 25 traversing the lower half of plunger'17 under the-control of a valve, 25 which'is operated'in the followv 8 by meansof straps 32 permitting thero'cl 31to move horizontally. The end of rod 31 is provided with a longitudinal slot through which thepin passes. 'A coiled spring 34; surrounding rod 31 between one. of the straps 32 andcam 28 presses the latfor sealing material having a nozzle, r in said n ozzle,abell-sha'pedprojection adapted to. receive theend of a carbon electrode de" tel-towards the fin or 29. Inasmuch asthe cam 28 is carried %y the lever 8 it --w1ll b'e movedwith the latter andinto engagement and not-- closed lending to Jnove said platform toward said -with finger 29. During Ward movement of lever 8, the finger 2-9. will force the cam- 28 and rod to the right against the tension of spring 34 until the center. of the cam passed, whereupon the valve 25is closed byspring 27 and the cam 34 toride on top of v It will before the Closure of valve until shortly after the clo-' sure of said valve 20. During the following downward-movement of. lever 8, they canr28 rises fove'r finger 29 without, however, opening the valve 25. 1

\Vhat Iclaim is:

1-. In a dry cell sealing device, a container e for sealing material, means the flow of materialfrom said container in the form of a hollow cylinder, an d means for blowing air through said mass from them-- side of thecylinder in a direction at'right I I angles tothe walls thereof. 7

2. Ina dry cellsealing device, a container for sealingmaterial, an annular valve insaid container, means foroperating said valve-to permit the flow'of a cylindrical mass of mav means includ ng an air valve for controlling the flowv of air terial from said container,

through said cylindrical mass,- andopen ating means for said air valve responsiveto the actuating of said first-mentionedvalve.

3. Ina dry cell sealing-device, a container for sealing material having a nozzle, avalve in said nozzle, a bell-shaped projection adapted to. receive a carbon electrode depending from said valve, a plunger, carrying said valve, a pivoted lever for actuatlngvsaidplunger, a platform for the dry cell below said nozzle and valve, and a lever normally nozzle,- said valve beingopened by a move- 'ment tlleleOftOjVilI'd said platform;

4:. In a dry cell sealing device, a container for sealing material having a nozzle-,a valve 1n said nozzle, a bell-shaped project-ion ada ted to receive a carbon electrode depending, rom sald valve, a plunger carryingsaid valve, a .plv-

oted lever for actuating said plunger, .a platform for the dry cell below'said nozzle and valve, a lever normally tending to move said platform toward said nozzle, means 'includ-' ing an air valve for controlling the flow of air through said projection, and means for the continued up-I I "said valve, a pivoted be seen, therefore, that during the upward movement of lever 8 the valve .25"

for controlling mounted onsaid said rod during apart of'the upward movefor sealin material, means the flow of material from saidcontainer in a opening said air valve responsive to closing or said first mentioned valve. Y

pending from said valve, a plungercarrying I lever for actuating said plunger, a platform said nozzleand ,y alve, a lever normally tending to move saidplatform towards said nozzle, means including a normallyclose'd air valve controlling the "passage-of said projection, said air valve to' open it during only. apart {of a movement of said pivoted lever. 6. In a dry cellsealing device, 'y-for sealing material having a nozzle, a valve bell-shaped projection adapt- 30 a container in said nozzle, a

, ed re receive the carbonelectrode depending fromsaid valve, a plunger projecting through said contair :r and carrying at its lower end said valve, a pivoted lever with whichthe upper end of said plunger'is connected, a

"platform fort-he dry v cell below-said nozzle and valve, a rod carrying said platform, a

spring normally tending .to move said rod up wards, a

said'spring-pressed valve, arod for opening said valve aga nst spring tension, and a. cam

pivoted lever for actuating ment' of said 1ever.' 1

7. In a dry'cell sealing device a container cylindricalmas's for a certaan. length of time, and meansfor conducting'a blast of air to the center of said mass and for guiding said blast in a direction at'an angle to-thewall of the container, said vconductin meansbeing operated' by the first determined point in its movement.

8. The method or sealing-the-top orien e cylindrical-container with a viscous fluid which comprises 'flowinga quantity of said material into said containerin-the formof 1 E anannular stream, cutting as said fiowwhen the desired qiiantit-y lias'been discharged into I the container, conducting an annular blast of air to the open end of said container and container. 1 v

In testimony whereof, I have signed my name to;this specification this 13tb2day of 120 for the dry cell below 70 air through and a cam cooperating with lever for-movingsaid rod down-- i. wards, a'normally closed spring-pressed 9 valve, a. passageway for air controlled by for; controlling mentioned'means'at a pre- 1055 toward thei'sides thereof to prevent any ex- 'cess of said material'from being undesirably deposited in the central area of the filled, 

